Having a title of Christian does not mean one walks in the Way; living what was taught of the Holy Son speaks for truth to your faith rather than being labelled or labeling yourself one name or another. The name only goes so far, so action needs to back it up.

Nevertheless, sin does not make a person called of the Father and the Son lesser called, but in need of repentance. So, all things in the article mentioned seem to imply that one being born again means that one must not ever do something morally corrupt or they aren't any different than those who openly go away from the faith. What did the people do after they did these things, one can ask. Was there repentance and true sorrow? Was a lesson learned? Had they done it again? That is a part of what makes the difference.